Sandstone- Rounded grains,permeable-because water can get into gaps between the grains.
Granite- Granite has interlocking grains, the interlocking grains are sometimes called crystals. rocks with interlocking grains are sometimes called crystals.Rocks with interlocking grains are not porous.
Weathering- Rocks can be worn away
Chemical weathering- Happens when rainwater reacts with minerals in a rock.Rain water is slightly acidic because it contains dissolved gasses.
Physical Weathering-The minerals in a rock expand if the rock gets hot and contracts if…